Six-time Grammy winner Billy Joel decided he didn’t want to tell all in his autobiography and wonders why Elton John thinks it’s his place to dish on a fellow piano man’s personal issues.

In the new Rolling Stone, Joel tells the mag he has no idea why Elton suggested in the February 2011 edition that Joel go into rehab. “We haven’t spoken, and I don’t know why,” Joel says. “Elton doesn’t really know me that well. We toured together for 16 years and never really hung out. Elton assumes a lot about me that he doesn’t really know. If he thought I was screwing up or doing something bad, I don’t know why he didn’t just call me.”

Joel also tells Rolling Stone he was working on an autobiography, but shelved the idea when his publisher wanted to make it about booze and other bummers. “When I saw the publishing company hyping it as ‘all about his drinking, his divorce and his depression,’ I said, ‘Nah, I don’t want to do this. Here’s the money back.’”